Bharat Sanchar Nigam [BSNL] — refund of security deposit against telephone no[protected].

Dear sir / madam,

I have applied for refund of security deposit on 27/12/2019 against my telephone no [protected]. But till now i am not get the security deposit money. Today when i visited the bsnl nellore branch & ao cash told fund is not available when it will available we will process the payment of your caution money.

It's going 6 months but i am not get the security money. Therefore i request to you, please help me on this regards.